RRC ID 992
Author Takahashi Y, Sano A, Takizawa K, Fukushima K, Miyaji M, Nishimura K.
Title The epidemiology and mating behavior of Arthroderma benhamiae var. erinacei in household four-toed hedgehogs (Atelerix albiventris) in Japan.
Journal Nihon Ishinkin Gakkai Zasshi
Abstract An epidemiological survey of Trichophyton mentagrophytes var. erinacei in the household hedgehog and other rodents was made between January 17, 2002 and February 28, 2002 in Japan. Quills and hairs were collected from sources identified via the internet. The fungus was isolated only from the quills of four-toed hedgehogs (7/18; 39%) from Kanto to Kyushu regions. Isolates were examined morphologically, physiologically and genetically, and identified as T. mentagrophytes var. erinacei anamorph. The isolates were also genetically compared with European hedgehog (Erinaceus europeus)-borne T. mentagrophytes var. erinacei and Kenyan hedgehog (Aterelix albiventris)-borne Arthroderma benhamiae, and their genotypes of the ITS1-5.8S-ITS2 rDNA were all identical. The isolates were crossed with A. benhamiae Americano-European race and African race, A. vanbreuseghemii and A. simii, with the result that they mated only with African race (+) or (-). Mating types of the isolates were (+) in 6 isolates and (-) in one. An intra-isolate mating between one of the 6 plus isolates and the minus one formed abundant mature gymnothesia, the mating type ratio of the F1 progeny was approximately 1:1, and the sib crossings of F1 progeny produced abundant fertile gymnothesia. The present study revealed that the intra-Japanese hedgehog-borne isolate crossing showed complete fertility and that the sexual degeneration pointed out by Takashio (Mycologia 71: 968-976, 1979) did not exist. Two pairs of mating, (+) and (-) mating types of Japanese isolates with (-) and (+) tester strains of A. benhamiae African race formed less gymnothesia, mating type ratios were unbalanced, and sib crossings of F1 progeny produced small gymnothesia containing a low number of asci, pseudogymothesia, or none, respectively. These results show that A. benhamiae var. erinacei, the teleomorph of T. mentagrophytes var. erinacei, belongs to a different mating group (e.g. hedgehog race) than the Americano-European and African races in A. benhamiae.
Volume 44(1)
Pages 31-8
Published 2003
PMID 12590257
MeSH Animals Arthrodermataceae / genetics Arthrodermataceae / isolation & purification* Arthrodermataceae / physiology Crosses, Genetic Genotype Hedgehogs / microbiology* Reproduction / genetics Trichophyton / genetics Trichophyton / isolation & purification Trichophyton / physiology
Resource
Pathogenic microorganisms IFM 48142 IFM 48143 IFM 48144 IFM 48145 IFM 48154 IFM 50998 IFM 51499 IFM 51500 IFM 51501 IFM 51502 IFM 51503 IFM 51504 IFM 52310 IFM 52311 IFM 52312 IFM 52313 IFM 52314 IFM 52315 IFM 52316 IFM 52317 IFM 52318 IFM 52319 IFM 52320 IFM 52321 IFM 52322 IFM 52323 IFM 52324 IFM 52325 IFM 52326 IFM 52327 IFM 52328 IFM 52329 IFM 52330 IFM 52331 IFM 52332 IFM 52333 IFM 52334 IFM 52335 IFM 52336 IFM 52337 IFM 52338 IFM 52339 IFM 52340 IFM 52341 IFM 52342 IFM 52343 IFM 52344 IFM 52345 IFM 52346 IFM 52347 IFM 52348 IFM 52349 IFM 52383 IFM 52384 IFM 52385 IFM 52386 IFM 52387 IFM 52388 IFM 52389 IFM 52390 IFM 52391 IFM 52392 IFM 52393 IFM 52394 IFM 52395 IFM 52396 IFM 52397 IFM 52398 IFM 52399 IFM 52400 IFM 52401 IFM 52402 IFM 52403 IFM 52404 IFM 52405 IFM 52406 IFM 52407 IFM 52408 IFM 52409 IFM 52410 IFM 52411 IFM 52412 IFM 52413 IFM 52414 IFM 52415 IFM 52416 IFM 52417 IFM 52418 IFM 52419 IFM 52420 IFM 52421 IFM 52422 IFM 51419 IFM 51420 IFM 51421 IFM 51422 IFM 51423 IFM 51378 IFM 51379 IFM 51380 IFM 51381 IFM 51382